Inspiration

While reading articles and research papers, I often had to open new tabs just to look up unfamiliar words. This constant switching interrupted my focus and learning flow. I wanted a seamless, integrated way to understand any word instantly without leaving the page. That idea led me to create Chrome AI Word Define, a browser extension powered by Google Chrome’s on-device AI.

What it does

Chrome AI Word Define is a browser extension that instantly provides definitions for any word you highlight on a webpage.

When a user selects a word and right-clicks, the extension uses Chrome’s on-device AI (Gemini Nano) to generate a short, context-aware definition — all processed locally without sending data to external servers.

The definition appears instantly in a small popup, allowing users to:

Learn new words without leaving the page

Read and research faster

Maintain focus without switching tabs

Because it runs on-device, it ensures privacy, speed, and offline functionality while demonstrating the practical use of Chrome’s built-in AI capabilities.

How we built it

Challenges we ran into

Accomplishments that we're proud of

What we learned

What's next for Dictionary

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